* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  html {
    font-size: 14px;
    color: #333;
    text-align: justify;
  }
  body {
    width: 100%;
  }
  body .banner img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
  }
  body .head-title {
    width: 100%;
    padding: 30px;
    background-repeat: no-repeat;
    background-position: center 75%;
    margin-bottom: 30px;
  }
  body .head-title p {
    margin: 0;
    text-align: center;
    font-size: 30px;
    font-weight: bold;
  }
  body .row {
    display: flex;
    justify-content: center;
    margin: 30px 0;
  }
  body .row .row-item {
    padding: 0 20px;
  }
  body .margin-center {
    display: block;
    margin: 0 auto;
  }
  body .large-picture {
    padding: 50px 0;
    height: 80vh;
  }
  body .paddingTB {
    padding: 50px 0;
  }
  body a {
    text-decoration: none;
  }
  body a:hover {
    text-decoration: none;
  }
  body a:focus {
    text-decoration: none;
  }
  body .nav {
    font-size:14px;
    height: 60px;
    line-height: 60px;
    background-color: rgba(50, 50, 50, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    display: flex;
    justify-content: center;
  }
  body .nav .logo {
    height: 100%;
    line-height: 0;
    display: flex;
    align-items: center;
  }
  body .nav .menu {
    margin: 0 50px;
  }
  body .nav .menu ul {
    display: block;
    list-style: none;
  }
  body .nav .menu ul li {
    float: left;
    position: relative;
    text-align: center
  }
  body .nav .menu ul li:after {
    content: "";
    width: 0;
    height: 2px;
    background-color: orange;
    display: block;
    transition: 0.5s;
    position: relative;
    top: 0;
    left: 50%;
  }
  body .nav .menu ul li:hover::after {
    width: 90%;
    left: 5%;
  }
  body .nav .menu ul li a {
    color: #fff;
    padding: 0 20px;
    height: 58px;
    line-height: 60px;
    display: block;
  }
  body .nav .search {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  body .nav .search input {
    height: 26px;
    width: 200px;
    border-radius: 13px;
    padding: 3px 30px 3px 10px;
    outline: none;
  }
  body .nav .search button{
    position: relative;
    left: -30px;
    top: 2px;
    color: #aaa;
    background-color: transparent;
    border: none;
    outline: none;
    cursor: pointer
  }
  body .footer {
    display: flex;
    flex-direction: column;
    background-color: #001326;
    padding: 50px 0 30px;
  }
  body .footer .footer_top {
    width: 100%;
    padding: 0 15%;
    padding-bottom: 20px;
    background-color: #001326;
    display: flex;
    justify-content: center;
    align-self: start;
  }
  body .footer .footer_top .footer_top-item {
    font-size: 14px;
    color: #fff;
    font-weight: 400;
    margin-left: 20px;
    flex: 1;
  }
  body .footer .footer_top .footer_top-item p {
    margin: 0;
  }
  body .footer .footer_top .footer_top-item .footer_top-item-title {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: bolder;
    margin-bottom: 10px;
    display: inline-block;
  }
  body .footer .footer_top .footer_top-item .footer_top-item-content {
    color: #ababab;
    list-style-type: none;
  }
  body .footer .footer_top .footer_top-item .footer_top-item-content p {
    line-height: 24px;
  }
  body .footer .footer_top .footer_top-item .footer_top-item-content a {
    color: #ababab;
    line-height: 24px;
    text-decoration: none;
  }
  body .footer .footer_top .ercode {
    width: 150px;
  }
  body .footer .footer_top .ercode img {
    float: right;
  }
  body .footer .footer_bottom {
    color: #adadad;
    width: 100%;
  }
  body .footer .footer_bottom .Copyright {
    margin: 0 100px;
    border-top: 1px solid #565656;
    text-align: center;
    padding-top: 30px;
  }